Tube-making- machine



May 1, 1923 W. LA QRUW:

TUBE MAKING MACHINE Filed Feb. 17, 1921 Patented May 1, 1923.

ROMEO LA CROIX, G1? lC-IDL'EK'UKE llll" LANGSTON GOMYPANY, 03F Gil...

JERSEY.

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Application filed liebruary 1?, 1921.

To all whom it may concern Be it known that 1, Romeo LA Cnom, a citizen of the United S11E83, and resident of Holyoke, in the county of Hampden and 5 State of Massachusetts, have invented certain new and useful Improvements in Tube- Malring li Iachines, of which the following is a specification.

In the manufacture of paper or fibre tubes, it is common practice to Wind one or more strips of paper or other material heli eally and on a mandrel. The tube, as test as formed, by the gluii'i or posting together of the Wound strip: or strips, is moved longitudinally of the mandrel and oil one free end thereof, so that the tube may be continuously' manufactured and cut into sections of the desired length as delivered. A machine of this general. character is shown in the Langston Patent 981,774.

The strip surface which terms the inner surface of the finished tulie trietionally engages with the mandrel during the longitudinal movement of the completed tuhe, and 25 this friction, When high, materially limits the speed oi. manufacture and prevents smoothness and uniformity oi operation.

The main objects of my invention are to reduce this friction, gain greater smoothness of operation and permit greater speed by the provision of simple inexpensive and eflicient means 'For lubricating: the frictionally en, nig'i1o,e surfaces. This is acco1nplished by delivering a lubricant to that surface oi the strip wh ch is to term the inner surface ot the tube, and which slides along the mandrel from the point where the strip first comes in contact with the mandrel to the free end otthe latter. in its preferred form my improved device is designed as an attachment which may be readily applied to a machine already built or in use. and which may he readily adjusted to different widths an d angles oi elivery oi the strip. The device also serves as guide For the paper strip. and may he employed in place oi the ordinary paper guide. The device serves as tension for the strip, and is so constructed that the strip may be brought into proper relationship to the lubricator and the desired tension applied very easily in threading up the ma chine.

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illustrated one :torm which my invention nay assume.

tigure l is a side elevation looking 111 a du'ection at right angles to the path of the strip.

ure 2 is an elevation at right angles thereto, portions oil? the device being; broken away, and I Figure 8 shows a portion of a tube male 1115;; machine with my improved device attached thereto.

lo the device illustrated there is pro vided a lubricant chauilier 10 having a top Wall or cover plate l 1., over which the paper strip may pass, said plate being reticulated or otherwise termed to permit the compart tively slow delivery otluhricant from the chamber through the plate into engagement with the strip pass ng over the plate. ll do not wish to be limited to any particular kind of lu uicant, although I much prefer to use one which is normally in insemisolid state and which will be picked up to a cornyiaratively slight extent by the strip. I have Found 'lrom experience that mutton tallo v is u very suitalole material. for this purpose.

lit one site oi the chamber 10 there is provided a cam reservo r 12, in which the lubricant may he pl. l. said reservoir havinnt means tor putt the lubricant under pr ure and insurinoithe delivering thereo't iroucjh the reticulated plate ll to the strip. Fo this purpose l have illustrated the reservoir l2 as heino cylindrical in torin and provided with a plunger m inher 1.3 connected to a threaded stem 14-. T he stem has threaded engagement with a yoke 15 mounted. on a pair of threaded supportino: rods to carried by lugs 17 on the Wall of the reservoir. The voice is held at each ci'id between pairs of nuts so that the position of the yoke may he varied. The plunger 'l/lis provided with a head s em or other member 19 to vtacilitatc the rotation oi the stem and the Forcing oi the plunger downwardly to put the lubricant under pressure and deliver it through the reticulated plate ll. Preferably the surface of th s plate is slie'lit-ly dished or concave to facilitate a better distribution oi." the lubri. cant on the surface ot the strip;

In order to yieldino-ly hold the strip in out with the lubricant. delivering device, I provide a pressure plate 20 carried by a stem 21 extending substantially at right angles to the plane of the plates 11 and. 20, and between which the strip of paper passes. The stem 21 is mounted in a pair of arms 2'2--23 secured to a supporting rod 24. Between the two arms the stem 21. has a collar 25 serving as a stop or seat for one end of a coil spring 26. the other end of which engages with the under side of the arm 22 so that the spring normally tends to press the plate 20 downwardly toward the plate 11. To limit this movement of the plate20 the stem 21,pret' erably has anut 27 on its upper end. engaging with the upper side of the arm 22.

To facilitate threading up of the machine the arms 22-23 and the parts carried thereby, including the pressure plate 20, are mounted toswing about the axis of the rod 24 as a center. The two arms are preferably rigidly secured to the rod at the desired distance apart by means of suitable set screws and the rod itself is mounted for rotation in a bracket 28 mounted on one side of the lubricant chamber 10. The hub of the arm rests directly on this bracket and the coil spring 29 on the lower end of the rod 24 normally tends to pull the rod 24 and the parts carried thereby downwardly to the limiting position established by the engagement of-the hub of the arm 23 with the bracket 28. In order to lift the pressure plate 20 away from the distributing plate 11 the engaging surfaces of the bracket '28 and the hub are inclined'or formed as cam surface 30, as illustrated particularly in 'Figure 2. Thus, as the rod 24 is rotated to swing the pressure'blade 20 away from the lubricant distributing plate, the rod 24 is moved endwis'e and upwardly and the pressureplate 20 is therefore lifted away from the plate 111 as well as moved laterally in respect thereto.

To insure the proper positioning of the strip in respect to the distributing plate and y at the same time to properly guide the strip to the mandrel. the device is provided with adjustable means for engaging with the side edges of the strip. This means is shown as including a rod 31 projecting from the side of'the chamber 10 in the general direction of the path of the strip and adjustably mounted on this rod is a transverse bar 32 rigidly held in any suitable manner 'as for instance. bym'eans of a set-screw. Two guide plates 33 are supported on this bar 32 and are adjustable'a-l'ongthe length of the latter. Preferablyth'e bar 32 is'slott'ed at each end and each guide plate 33 has a depending threaded "stud 34 projecting through the corresponding slot and provided with lock nuts or securing mea s. Theftwo 'guide 05 ara m be adjustetl naepeaataay (if each other, and they may be turned about their threaded studs as centers to accommodate the device to different angles of delivering, as well as widths of stri The device is mounted 011 t e tube making machine in such a position that the paper strip will pass between the guide plates 3 and between the opposed plates 11 and :30. just before reaching the mandrel. Any suitable means may be provided for rigidly securing the device. The underside of the chamber 10 has an elongated lug 35 formed integral therewith and presenting a threaded stud bolt which may enter a slot or aperture in the machine and receive a securing nut. Various other means might be provided for positioning and securing the attachment. and

depending in part on the construction of the machine in connection with which the attachment is to be used.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A tube making machine including a mandrel on which a strip of paper is wound helically to form the tube, and in respect to which the completed tube slides lengthwise as formed, a reservoir for lubricant and means for forcing lubricant out of said reservoir and delivering the same into the path of movement of the surface of the strip going to make up the inner surface of the tube.

2. A tube making machine having in combination with the mandrel on which the strip of paper is wound helically to form the tube and in respect to which the completed tube slides lengthwise as formed. a reticulated lubric'ant distributing plate over which the strip passes.

A tube making machine having in combination with the mandrel on which the strip of paper is wound helically to form the tube and in respect to which the completed tubc slides lengthwise as formed. a stationary support adapted for the passage of lubricant therethrough and means for guiding the strip of paper across said support.

4. A tube making machine having in combination with the mandrel on which the strip of paper is wound hclically to form the tube and in respect to which the completed tubc slides lengthwise as formed. a pair of mcru hers resiliently pressed into engagement with opposite surfaces of the strip and means for delivering the lubricant through one of said members. i

'5. An attachment for tube making uuc chines including a lubricant delivering device, and a spring pressed plate for outraging with one surface of the and for yieldingly holding the opposite su ace against said device.

'6. An attachment for tube m aki n g inachines including a pair of members yieldiio was

ingly pressed together for engagement with opposite surfaces of the strip used to term the tube, means for delivering a lubricant through one 0t said members and means engaging with opposite edges ct said strip for guiding the strip in respect to said members.

7. An attachment for tube making niaehines including; a chamber having a reticulated top plate, a bracket su iportcd by said chamber and a pressure plate carried by said bracket, and yieldingly pressed toward said chamber to hold the strip going to make up said tube in engagement with the surface elf said chamber.

8. An attachment for tube making machines including); a chamber having a reticulated delivery plate, a bracket carried by said rhamber, a pressure plate carried by said bracket and yieldin ggly pressed toward said delivery plate, and means tor guiding a strip of paper between said Plates.

9. An attachment for tube making machines including a chamber having; a reticulated top plate, a bracket carried by said chamber, a pressure plate carried by said bracket and yieldingly me ed iiUWt Kl said top plate, means for guidr g a L, p oi paper between said. plat s,

raid bracket being rotatable to move said pressure plate laterally away from said cl amber.

10. An attachment for tube making inachines including a lubricant chamber having a top wall constituting a lubricant distributing means, a rod sugported by said chamber, a pair of arms car ,d by (l r d, a pressure plate having a stem guided by said arms and resiliently pressed toward said top wall, said rod being rotatable to move said pressure plate away troin said top wall.

ill. An attachment tor tube mahino' inachines including; a lubricant chan'iber hariup; a top wall eonstiluitinp; a lubricant distril'lutinp; i'ueanszl, a rod supported. by said chamber, a pair oil arms carried by said rod, a pressure plate having a stem guided by said arms and resiliently pressed toward said top wall, said rod being; rotatable to move said pressure plate away trom said top wall, and simultaneously lift it out of eiurluremeut with said {top wall.

1/3. device of the (lflfil't descrlliled. iueluding); a chamber luivinp; a reticulated top wall, a pressure plate opposed thereto and. iulaptiul toyield' hold a strip ot material in ei'urageinei' t with said. plate, means :l'or nursing said pressure plate laterally and simultaneously away from said reticulated plate, and means for guiding; the strip oi? material between said plates.

13. rln attachment for tube making machines oil the type in which a strip of paper is wound helically on a mandrel to form the tub-e and the tube feeds endwise on the mandrel, said attachment, including a lubricant distributor and a pair of guides supported thereby and at one side thereof for engaging with opposite edges of the strip receiving the lubricant.

l l. An attachment for tube making macuines oi the type in which a strip of paper is wound helieally on a mandrel to term the tube and the tube i feeds endwise on the mandrel, said attachment. incllulinua lubricant dis fiibutor and a pair at guides stri receiviu the lubricant, said guides beinp; adjustable toward and from each other.

J lin attachment for tube making machines ot the type in which a strip of paper is wound helically on a mandrel to term the tube and the tube feeds endwise on the mandrel, said attachment, including a lubricant distributor and a pair of guides supported thereby and at one side thereoilf for engaging with opposite edges of the strip receiving the lubricant, said guides being adjustable toward and IilOlH said distributor.

16 A device oil the class described, including a lubricant chamber having a top well adapted to support a strip to be lul' led, and serving as a lubricant distributor. a reservoir connected with said chamber and having a plunger member tor putting; the lubricant under pressure and 'i.elding; means for holding strip to be lubricated in engagement with said top wall.

17. An attachment for tube making malll'illfls ot the type in which a strip o'li paper is wound helically on a mandrel to term the tube and the tube :lfeeds ejiiidu'ise on the mandrel, said attachment including a ln-acket member a pair of guides carried thereby and adjustable in respect to each other for directi the strip of paper to the mandrel, and means also carried by said bracket for delivering lubricant to the suriliace ol the strip going; to males up the inner sui :l'a cc of the tube.

fligued at lilolyolre, in the county oi lrlauunlen and ldtate of Mass, this 19th day on" lanuary, ll... ll 1921.

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